9780180489

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{257}}^1\times {\mathrm{7963}}^1$

素因数の和:8291

約数の個数: 40

約数和(自身を含む): 14917209120

約数和(自身を除く): 5137028631

約数列:

[1, 3, 9, 27, 59, 81, 177, 257, 531, 771, 1593, 2313, 4779, 6939, 7963, 15163, 20817, 23889, 45489, 71667, 136467, 215001, 409401, 469817, 645003, 1228203, 1409451, 2046491, 4228353, 6139473, 12685059, 18418419, 38055177, 55255257, 120742969, 165765771, 362228907, 1086686721, 3260060163, 9780180489]

約数ペア:

[(1, 9780180489), (3, 3260060163), (9, 1086686721), (27, 362228907), (59, 165765771), (81, 120742969), (177, 55255257), (257, 38055177), (531, 18418419), (771, 12685059), (1593, 6139473), (2313, 4228353), (4779, 2046491), (6939, 1409451), (7963, 1228203), (15163, 645003), (20817, 469817), (23889, 409401), (45489, 215001), (71667, 136467)]